'Questions About Quitting' Smoking Cessation Trial (Q2)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.

Key information relevant to the recruitment process for the
overall study, such as dates of the recruitment period and locations

Participants were recruited from Group Health, a large, non-profit health plan in the US Pacific Northwest. Data were collected between May 2010 and November 2012. All intervention and data collection occurred online.

Pre-Assignment Details

Significant events and approaches for the overall study
following participant enrollment, but prior to group assignment

No text entered.

Reporting Groups

Description

Randomization Arm 1

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [dictated], proactive emails [yes], and testimonials [yes]

Randomization Arm 2

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [not dictated], proactive emails [yes], and testimonials [yes]

Randomization Arm 3

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [dictated], proactive emails [no], and testimonials [yes]

Randomization Arm 4

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [not dictated], proactive emails [no], and testimonials [yes]

Randomization Arm 5

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [dictated], proactive emails [yes], and testimonials [no]

Randomization Arm 6

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [not dictated], proactive emails [yes], and testimonials [no]

Randomization Arm 7

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [dictated], proactive emails [no], and testimonials [no]

Randomization Arm 8

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [prescriptive], navigation [not dictated], proactive emails [no], and testimonials [no]

Randomization Arm 9

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [dictated], proactive emails [yes], and testimonials [yes]

Randomization Arm 10

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [not dictated], proactive emails [yes], and testimonials [yes]

Randomization Arm 11

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [dictated], proactive emails [no], and testimonials [yes]

Randomization Arm 12

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [not dictated], proactive emails [no], and testimonials [yes]

Randomization Arm 13

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [dictated], proactive emails [yes], and testimonials [no]

Randomization Arm 14

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [not dictated], proactive emails [yes], and testimonials [no]

Randomization Arm 15

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [dictated], proactive emails [no], and testimonials [no]

Randomization Arm 16

Persons in this group are randomized to the following combination of each of the experimental factors: message tone [motivational], navigation [not dictated], proactive emails [no], and testimonials [no]

Participant Flow: Overall Study

Randomization Arm 1

Randomization Arm 2

Randomization Arm 3

Randomization Arm 4

Randomization Arm 5

Randomization Arm 6

Randomization Arm 7

Randomization Arm 8

Randomization Arm 9

Randomization Arm 10

Randomization Arm 11

Randomization Arm 12

Randomization Arm 13

Randomization Arm 14

Randomization Arm 15

Randomization Arm 16

STARTED

116

116

117

117

117

117

116

117

116

116

117

117

116

117

117

116

COMPLETED

116 [1]

116 [1]

117 [1]

117 [1]

117 [1]

117 [1]

116 [1]

117 [1]

116 [1]

116 [1]

117 [1]

117 [1]

116 [1]

117 [1]

117 [1]

116 [1]

NOT COMPLETED

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

[1]

All enrolled participants were included in the final intent to treat analytic sample.

Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

1865 participants were enrolled and randomized. For the analyses, participants assigned to each contrasting level of each of the 4 experimental factors were compared against one another. Thus, 1865 people were in each analytic arm in this factorial screening experiment.

Reporting Groups

Description

Randomization Arm: 1

Persons assigned to this arm received the following intervention combination: Tone [prescriptive], Navigation [dictated], proactive emails [yes], and testimonials [yes].